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From "Sam Crawford (JIRA)" <j...@apache.org>
Subject [jira] Created: (HTTPCORE-228) NullPointerException in AsyncNHttpServiceHandler on empty entity-enclosing request
Date Fri, 11 Jun 2010 12:21:13 GMT
NullPointerException in AsyncNHttpServiceHandler on empty entity-enclosing request
----------------------------------------------------------------------------------

                 Key: HTTPCORE-228
                 URL: https://issues.apache.org/jira/browse/HTTPCORE-228
             Project: HttpComponents HttpCore
          Issue Type: Bug
          Components: HttpCore NIO
    Affects Versions: 4.0.1
         Environment: [root@dev3 DCS]# uname -a
Linux dev3 2.6.18-164.9.1.el5 #1 SMP Tue Dec 15 20:57:57 EST 2009 x86_64 x86_64 x86_64 GNU/Linux
[root@dev3 DCS]# java -version
java version "1.6.0_17"
Java(TM) SE Runtime Environment (build 1.6.0_17-b04)
Java HotSpot(TM) 64-Bit Server VM (build 14.3-b01, mixed mode)

            Reporter: Sam Crawford


When a client sends an entity-enclosing request, but does not include an entity, an IOReactorException
is thrown which in turns terminates the server. The cause appears to be a missing null-check
around line 317 in the following code:

313         ConsumingNHttpEntity consumingEntity = connState.getConsumingEntity();
314
315         try {
316
317             consumingEntity.consumeContent(decoder, conn);
318             if (decoder.isCompleted()) {
319                 conn.suspendInput();
320                 processRequest(conn, request);
321             }


The issue can be reproduced using the following:

[sam@dev3 ~]$ curl -v -d "" https://proj.acmecorp.com/
* About to connect() to proj.acmecorp.com port 443
*   Trying 192.168.254.22... connected
* Connected to proj.acmecorp.com (192.168.254.22) port 443
* SSL certificate verify ok.
> POST / HTTP/1.1
> User-Agent: curl/7.15.5 (x86_64-redhat-linux-gnu) libcurl/7.15.5 OpenSSL/0.9.8b zlib/1.2.3
libidn/0.6.5
> Host: proj.acmecorp.com
> Accept: */*
> Content-Length: 0
> Content-Type: application/x-www-form-urlencoded
>
(No response is ever received)


Complete stacktrace:

INFO com.acmecorp.proj.http.HttpSSLServer: Connection open: [proj.acmecorp.com/192.168.254.22:47992]
ERROR com.acmecorp.proj.http.HttpSSLServer: I/O error
org.apache.http.nio.reactor.IOReactorException: I/O dispatch worker terminated abnormally
        at org.apache.http.impl.nio.reactor.AbstractMultiworkerIOReactor.execute(AbstractMultiworkerIOReactor.java:326)
        at com.acmecorp.proj.http.HttpSSLServer$1.run(HttpSSLServer.java:162)
Caused by: java.lang.NullPointerException
        at org.apache.http.nio.protocol.AsyncNHttpServiceHandler.inputReady(AsyncNHttpServiceHandler.java:317)
        at org.apache.http.impl.nio.DefaultNHttpServerConnection.consumeInput(DefaultNHttpServerConnection.java:179)
        at org.apache.http.impl.nio.SSLServerIOEventDispatch.inputReady(SSLServerIOEventDispatch.java:225)
        at org.apache.http.impl.nio.reactor.BaseIOReactor.readable(BaseIOReactor.java:153)
        at org.apache.http.impl.nio.reactor.AbstractIOReactor.processEvent(AbstractIOReactor.java:314)
        at org.apache.http.impl.nio.reactor.AbstractIOReactor.processEvents(AbstractIOReactor.java:294)
        at org.apache.http.impl.nio.reactor.AbstractIOReactor.execute(AbstractIOReactor.java:256)
        at org.apache.http.impl.nio.reactor.BaseIOReactor.execute(BaseIOReactor.java:96)
        at org.apache.http.impl.nio.reactor.AbstractMultiworkerIOReactor$Worker.run(AbstractMultiworkerIOReactor.java:556)
        at java.lang.Thread.run(Thread.java:619)
INFO com.acmecorp.proj.http.HttpSSLServer: Shutdown HTTP server


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